计数图案填充内的对象
如何在阴影区域内自动计数对象。是否有快速命令来执行此操作？需要帮助。谢谢
奥尔金 非常简单，有一个图案填充边界选项，它在图案填充周围创建一条pline，然后使用它，你可以在多边形内执行（ssget“wp”），它将找到所有对象。现在有点忙，我会看到，
这是一个开始，在对象周围的pline上尝试。
; Text in polygons
; By Alan H may 2013
(vl-load-com)
(defun getcoords (ent)
(vlax-safearray->list
(vlax-variant-value
(vlax-get-property
(vlax-ename->vla-object ent)
"Coordinates"
)
)
)
)
(defun co-ords2xy ()
; convert now to a list of xy as co-ords are x y x y x y if 3d x y z x y z
(setq numb (/ (length co-ords) 2))
(setq I 0)
(repeat numb
(setq xy (list (nth I co-ords)(nth (+ I 1) co-ords) ))
(setq coordsxy (cons xy coordsxy))
(setq I (+ I 2))
) ; end repeat
) ; end defun
; program starts here
; choose output file change acdatemp to what you want
(setq fname (strcat "c:/alan/" (getstring "\nEnter file name ")))
(setq fout (open fname "w"))
(setq plobjs (ssget (list (cons 0 "lwpolyline"))))
(setq numb1 (sslength plobjs))
(setq x numb1)
(repeat numb1
(setq obj (ssname plobjs (setq x (- x 1))))
(setq co-ords (getcoords obj))
(co-ords2xy)
; write pline co-ords here
(setq numb3 (length co-ords))
(setq z numb3)
(setq ansco-ords "")
(repeat numb3
(setq ansco-ords (strcat ansco-ords (rtos (nth (setq z (- z 1)) co-ords) 2 3 ) " " ))
)
(setq ans (strcat "Pline " ansco-ords))
(write-line ans fout)
(setq ansco-ords "")
(setq ss (ssget "WP" coordsxy ) ; selection setwithin polygon
(if (= ss nil)
(princ "\nnothing inside")
(progn
(setq coordsxy nil) ; reset for next time
(setq numb2 (sslength ss))
(setq y numb2)
(repeat numb2
(setq anstext (vlax-get-property (vlax-ename->vla-object (ssname ss (setq y (- y 1)))) "Textstring"))
(princ anstext) ; change to write text to file
(write-line (strcat "text " anstext) fout)
(princ "\n")
) ; end repeat2
(setq ss nil) ; reset for next poly
)
)
) ; end repeat1
(close fout)
(princ)
另一种可能会为您提供所需计数但不会自动使用阴影区域的方法是发出MOVE命令，后跟WP。然后，您可以跟踪感兴趣的区域，并获得边界内找到的对象数。使用CP可以获得内部和交叉点的计数。获得计数后退出移动命令。
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